1、1性质：它具有动词的特点，但在句子中起着名词、形容词、副词的作用，充当主语、表语、定语、宾语、宾语补足语、状语的作用即：做除谓语以外一切成分。非谓语动词在动词-ing前加notThank you for not smoking.His not coming made everyone very disappointed.动词-ing形式的否定形式：动词的ing形式作主语，表语和宾语什么是主语(subject)？什么是宾语(object)？He likes his dog.主语宾语Swimming is my interest.I like reading.主语宾语结论_不能作主语和宾语_可以作
2、主语和宾语动词原形动词的ing形式1 动词-ing形式可直接置于句首作主语，谓语动词用单数。Seeing is believing.眼见为实。A.动词的ing形式作主语Dancingistheirhobby.dancehobbyBiting nails is not a goodhabit.bitenailshabitDoing exercise is the bestwaytoloseweight.do exerciselose weight2为了保持句子平衡，通常用先行词it作形式主语，而把真正的主语放在句末。此类句型有：总结：用it作主语，而把真正的主语移置句尾。It is no use
3、/useless doing sth It is no good doing sth.做.是没有好处的It is worthwhile doing sth It is pleasant doing sth It is a waste of time doing sth 做是没有用的。做是值得的。做是有乐趣的。做是浪费时间的形式动词ing形式It is no use useless doing sth 做是没有用处的。It is no use.trying to escapeIt is/was worthwhile doing sth 做是值得的。It is worthwhile.seeing
4、the filmIt is/was a waste of time doing sth 做是浪费时间的。It is a waste of time.playing computer gamesIt is/was pleasant doing sth 做是有乐趣。It is pleasant.playing with friendsIt is no use trying to escape.It is worthwhile seeing the movie.It is a waste of time playing computer games.It is pleasant playing wi
5、th friends.1 表示主语的内容。此时，主语表语位置可互换Her job is keeping the baby.=Keeping the baby is his job.2 表示主语具有的特征The problem is quite puzzling.B.动词的ing形式作表语1.作介词的宾语。2.作及物动词的宾语。C.动词的ing形式作宾语结论：凡是介词后面加动词时，一律用动词的ing形式。我们把这种情况称作动词的ing形式作介词的宾语。常用的短语有：be fond of喜欢;be tired of厌倦;give up放弃;be interested in对感兴趣;look for
6、ward to盼望;lead to导致;pay attention to注意;be used to 习惯于注意：凡是固定短语里面带的to都是介词，而不是不定式，所以它后面的动词要用ing形式。dream ofJia Laolian always dreams of_ the mouse.catchingcatchJia Laolianenjoys_ watermelon in summer.eating结论：有些动词后只能跟动词的ing形式，我们把这种情况称作动词的ing形式作及物动词的宾语。只能跟动词的ing形式作宾语的常用动词及词组有：admit承 认,avoid避 免,consider考
7、 虑,dislike不喜欢，enjoy喜欢,escape逃跑,finish完 成,keep继 续，mind介 意,suggest建议,imagine设想,practise练习，give up放弃，cant help禁不住，feel like想要做Correct or not?Would you mind opening the window?Would you mind open the window?Pay attention:mind后必须接动词的ing形式Correct or not?He is used to living in the countryside.He is used t
8、o live in the countryside.Pay attention:be used to是一个固定短语，里面的to是介词，而不是不定式，所以它后面的动词要用ing形式。Correct or not?I cant help laughing.I cant help to laugh.Pay attention:词组cant help后必须接动词的ing形式Correct or not?We look forward to seeing you.We look forward to see you.Pay attention:介词to后面的动词要用ing形式D.动词的ing形式的复合结
9、构l 主要有两种：l 1.形容词性物主代词/名词所有格+lV-ing形式，l 如：l I insist on Marys going there.我坚持要玛丽到那儿去。lHis being late for class madehis teacher very angry.2.在口语和非正式语体中，且做宾语时，常用人称代词宾格或名词普通格+V-ing形式例如：I dont mind Mary being late.The doctor does not mind me/myeating a little meat occasionally.医生并不反对我偶尔吃一点肉。l 用法l 当v-ing形
10、式作主语/宾语/表语，且它的逻辑主语不是句子的主语时，就需要使用v-ing形式的复合结构。如：Do you mind waiting here?你介意在这儿等会儿吗？wait的逻辑主语就是句子主语you，所以直接用v-ing形式。再如：Do you mind my/me smoking here?你介意我在这儿抽烟吗？smoke的逻辑主语是myme，而不是句子主语you，所以必须使用v-ing的复合结构。Time for Practice翻译练习1.学习英语非常有趣。Learning English is very interesting.2.环游世界是她的梦想。Travelling around the world is her dream.3.在教育上花钱是值得的。It is worthwhile spending money on education.4.很多孩子喜欢踢足球。Many children are fond of playing football.5.你读完那本书了吗？Have you finished reading that book?6.她试图避免再次见到他。She tried to avoid meeting him again.Thanks!
